Enabling Disaster Recovery for a Persistence Cluster

Disaster recovery of data in persistence stores requires explicit configuration in advance. You can enable disaster recovery for any persistence cluster independently of other clusters.

1. Define persistence clusters with redundant persistence servers.
   The set of persistence servers consists of two equivalent and parallel subsets:

   • Servers at the main site
   • Servers at the disaster recovery site
   Select the main site subset as the primary set.
2. Configure disaster recovery transports.
   Configure the disaster recovery transport of each persistence server so that any server at the main site can communicate with any server at the disaster recovery site on this transport (that is, full mesh connectivity).

   In addition to configuring the disaster recovery transports in the realm, it is good practice to verify the configuration of routers, firewalls, and other network infrastructure that connects the two sites.

3. Enable replication of persistence stores.
   Inspect each persistence store definition, and ensure that the Replicated check box is selected.
4. Deploy the realm definition.
5. Ensure that the persistence server processes are running at both sites.